Fire-box.



H.,W. JAGOBS Sz I'. W. SHUPERT.

APPLIUATIOI FILED JUNE 30, 1.09.

H111: Box.

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Patent-,ea Jau 24, 1911.

3 SHEETS-SHEET 1.

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a SHEETS-HEBT z.

`FIRE BOX.

oooooo@ H. W. JAGOBS c I'. W. SHUPERT.

APPLIGATION FILED JUnBao, 1909.

OOOOSOOOOO TM R E P U H S W R & S B 0 C A J .W `Fh PIRE B0X. APPLICATION FILED JUNE 30, 1909.

Patented Jan. 24;, 19H.

3 BHEBTS*SHEET 3.

y?, .wSESs WW@ "such stay bolts or staying. llach time the 'stay bolts are taken out of the ,wrapper sheet ."tivelly a plan vieiv able staying.; Fig. sectional view showingr stays ot' various .zontal sectional view through the water UNITED sTATEs PATENT OFFICE.

HENRY W. JAcoBs AND FRANK W. SHUPERT, or mornin; 1{ANsAs. A

FIREJ? OX.

Specification of Letters Patent.` Patented an, 24, 1911, Application tiled .Tune 30, 190B. Serial No. l505,118.

To all whom 'it 'may concern:

Be it known that we, HENRY 1V. JACOBS and FRANK il'. Snnren'r, both of Topeka, iu the county of Shawnee and in the State of Kansas, have invented a certain new and useful Improvement in Fire-Boxes, and do hereby declare that the following is a full; clcar,.and exact description thereof.

The object of our invention hasbeen to provide a fire-box which can be readily rcmoved from the boiler shell for repairing; and to such ends our invention consists in the readily removable tire-box hereinafter specified.

Inl the accompanying drawings Figure 1 is a .longitudinal sectional view of a boiler having carine-box applied thereto; Fig. 2 is a vertical sectional view, taken atfrigrht angles to the view shown injFig. l, showing one-half of the tire-box; Fig. 3 is a partial sectional view showing the rear side of the flue sheet; I `i,f ,1f.V 4 is a vertical longitudinal sectional view showing the front and real: staying; Fig. 5 is a partial sectional view showingr the rear fire-box sheet and the door; Fig. 6 is a partial plan view showing the parts of Fig, 5; Figs. 7 and S are respecF and side elevation ol one staying; l1`igs. 9 and 10, another form of detachll is 4 a partial vertical form of detachable are similar views of forms for the top of the crown sheet Fig. 12 Isa view showing in section each ot the .iorm of stays shown 1n Fig. l1; Fre'. 13 1s a horllegs; and Fig. 14 is a view on theline lLl-ll of Fig. 13. i As fire-boxes are ordinarily constructed, and particularlylocomotive fire-boxes, the tirc-b0x shell is connected to the boiler shell bvmany hundreds oit' stay bolts and other old form of staying: and in order. to remove the fire-box shell for the purpose'of repair` ing, it is necessary .to remove or-'c-ut all of vof the boiler. it is necessary to make the holesy larger in order to cut a new thread, and .this necessitates makin;lr the stay bolts ]arge1 and after a few such removals and replacements, the stay bolts become so large that. it is necessary to discard the wrapper sheet and replace it with a new one.

It. is' the object of our invJention to avoidI spectivelv,

the necessity for disconnecting the staying from the wrapper sheet, and to so construct our fire-box that; more or less, and preferably substantial] all, of the 'staying can be disconnected, an the fire-box removed Without, destroying any of the staying.

`We are aware that. our invention is capable of embodiment in many different forms, and we have chosen for illustration that form which we regard as thebestv form known to us; but such form is only to be regarded as typical of many ossible embodiments tion is not to beA limited to the details thereof.

In carrying our invention into practice, in the illustrated embodiment, we provide enl of the invention, an( our inveni outer boiler shell or wrapper sheet 10, and a.

tire-box consisting of U-shaped sections 11', having their flanges fastened together by rivets 12, which connect them and calkin pieces 13, which calking pieces are also pre erably provided with eyes 14, by which the staying can be connected thereto. The irebox `is preferably constructed according to 'our Patent Serial No. 917,172, granted Apri'l t5, 1909, but in the broad aspects of the' in vention, the fire-box may be constructed in any desired manner, such, for instance, as the ordinary standard locomotive ire;box. Eyes 15 are fastened to the shell or wrapper sheet., as by beiner formed on a hase 16 that is secured tothe t. iell by rivets 17.l NVe,pro vide some form of connection betwcenthc eyes on the fire-box and those on the shell, whereby a staying .is formed that can be disconnected either from one of said eyes, or that is'formed in two parts, which can be disconnected from cach other.' As shown in the right hand staying of Fig. 12, al link is formed of upper and lower bars 18 and 19,

connected by a turnbuckle 20, the upper bar being connected to the eye 15 by a bolt 21, and the lower bar being connected t0 the eye 14 by a rod 22.

jnstdescribed consists of a yoke 23, con- The next stay to that nec-ted by a bolt to the corresponding eye 15,

and a yoke 24, connected by the rod 22 with the corresponding eye 14, the two yokes being connected by an oppositely threaded rod 25. The next stay consists of two simple links 26, connected to the eyes 14 and 15, re-

by the rod22 and a bolt. The left hand stay, illustrated in Figs. l1 and 12, consist-s of a link 27 which has a yoke at its upper end, and connected with the eye l5 by 'a bolt, and which is received between the two flanges 2S and :'29, respectively, of the adjal cent boiler sections, and is connected tti-them by the passage of the rod 22 through holes formed in the said three parts.

In the water legs, the detachable staying 1s preferably formed by securing a bar 30 to the wrapper sheet, said bar havlng eyes 31 formed thereon at intervals, and by securing plates, having eyes formed thereon, between the flanges of adjacent fire-box se ct1ons, and threading rods through the overlapping eyes. As shown in Fig. 14, the right `hand form of connection with the fire-box is al simple plate 32, riveted between the flanges ot adjacent fire-box sections, and having eyes formed thereon to receive a rod 33. The next form of connection differs only in that t-he flangesl ol the fire-box sections are themselves formed into eyes 34. In the next form of connection, but one of the flanges of the fire-box section is formed into an eye 5. In the left hand forni of connection, as shown in Fig. 13, eyes 3G are formed in the flanges of' the fire-box sections, and the eye 81 on the Tiron 30l is received between-the. eyes 3G. As shown in Figs. T and S, ,the form of stayingbetwecn the back head and the fire door sheet preferabl)v consists of voles 3T secured in the back head whiclrare con-- nected to the eyes 25S) inthe tire door sheet 4U, the connection being b vmeans of rods41 threaded through holes` formed in said-.yokes and eres.l l v 'As shown in Figs. 9 and 10. theform of.- 4connection between the flue-sheet 4Q and the throat sheet 43 preferably consists of' simple c ves 4 4 and 45. which are respectively secured to the said sheets. and which are ron-` nected by rodsl 4G. I f ln order that-carb of' the various rods which connect. the portions of the staying, may be' removed without removing an) sheet ot the rc-box or boiler shell. we preferably provide. holes which are closed with plugs. through which holes rods may be passed.- For instancc, as shown in Fig. (i. the plug. 4T elosesa hole through which the roldLfl ma)1 be drawn. and a'plugftS closes a hole through which the rod 41 n-:. v he drawn.. Similarly` a hole is provided through which the rods 4G maj) be drawn. The rods 2L)- can be drawn forward into the boiler, because. before the removal of the re-box, it -is necessary to remove the boiler flues.

The usual stays 49 may be provided for the connection of the flue sheet between lthe flues and the throat sheet,- and such stays, as shown in Fig. are conneeted 'ith the flue sheet by'feet Secured bytworivets.- Said stays may be made in two partshaving c ves at their meeting ends, and a pin can bev` threaded through said eyes to detachablysecure them together.

usual, provided with ttanges 50 and 51, res1'3eotively,'which telescope into eachother, and are riveted together to form the door opening.

While any desired form of mud-ring can be Used, We prefer to form a mud-ring in Z- shape, as shown particularly in Figs. 3 and 4, wherein the mud-ring consists of a hori .zontal body 52, having an upwardly extend-- ing flange 53, which is secured to the firebox, and a downwardly extending flange 54, which is secured to the wrapper sheet. In this manner, it is only necessary to remove vthe rivets securing the flange 54 to the wrapper sheet in order to loosen the fire-box at this point.

The -1na11ner of securing the Ushaped fire-box sections tol the flat mud-ring is shown in Fig. l. It consists iii-flattening the central portion of the fire-box section. and forming a flange or ear 56 thereon, said flange or ear being shown in dotted lines in the said figure. The adjacent fire-box seetion is secured over the said flange or ear. land. thuslnakes a' tight joint. The parts forming this connection may be either weld ed together -or-riveted toffether, and calked. )f course, -whetherwelded or riveted to- .'gether, the parts are rivetedl to the mud-ring.

' lVhenthefire-box is in use, the'top of the crown sheet is fastened on the top of the wrapper sheetby4 means of the stays and rods 2:2. The sides of the fire-box arefas- .tenedI to the sides of the wrapper sheet by means of the stays and rods 33. The flue sheet is fastened to the throat sheet by means of the stays and rods 4G. The door sheet is -fastened to the back sheet by means of the stays and rods 41, and the lower edgesot the fire-box and wrapper sheet. are fastened together by means of the mud-ring. lVhen it is desired to disconnect-the fire-box, the flues are first removed. The rivets connecting the lower flange of the 1nud-ring with the wrapper sheetareremovcd, and the rivets connecting the flanges 50 and 51 on the back sheet and the door sheet, respectively, are removech The .rods 22 are drawn forward into the boiler, thus disconnecting the top of the crown sheet from the top of the Wrapper' sheet. The plugs 47 are removed, and the rods 33 drawn through the holes .thus left. and in this manner the sides or water legs o f the fire-box are disconnected from the -sides of the wrapper sheet. The plugs 48 are removed, and the rods 41 drawn through the holes thus formed, and .in this manner the door sheet is disconnected from the back sheet. .Thefre-box is now entirely disconnected. from the wrapper sheet, and b v `swinging all of the link connections between Ithe top of the fire-box and the top of the .Wrapper sheet to one side, so that'thev will not interfere with the forward movement of- The back head and the 'dor'sheet are.,` as

the eyes formed on the fire-box, the fire-box can be moved bodily forward to disconnect eyes to another and securing said parts tothe flange 51 from the flange 50. This forward movement is not'opposed by the connections between the throat sheet and the flue sheet, because the c ves 4l and l5 can slide past each other in longitudinal direction. It is, of course, necessary that one of I the three forms of water legsconneetions shown in 1 `ig.13,wlnch three forms were first described, should be used, and that the n a firebox, thel top and sides of said parts eyes on the fire-box should be forward of the eyes on the wrapper sheet, as otherwise the forward bodily inoveii'ieiit. of the fire-bok, to disconnect the door flanges, could notoccur. If for any reason this forward movement of the fire-box to disconnect the said flanges is not desirable. the back 4sheet can be re; moved b v removing the rivets fastening it to the shell.. in which ease the fire-box can be removed from the shell by simply dropping the firediox down.,hlte a telescope travcling bag. instead of the forward movement referred to. If the forward inovenient re `ferred to is to occur. it is also necessary to completely remove the mud-ring. or at least that portion of it between the throat sheet and *he flue sheet. ln order'that the back sheet may be readil) removable. we flange 5T. which is riveted to the wrapper sheet.`and thefbaclt ysheet is fastened to the said flange' b v rivets By this manner of fastening. the rivets to be removed are exposed at both ends. and can be readily taken out. As shown in Fig. 2, the lower end of the fire-box section adjacent to the flue plate is provided with a flange 59 ..by which a tight ioint is made between said parts, said flange beingseeured to said fllie plate..

The rods 22 and 4lare inadefsmallcr between the points where they support the lirebox sections. so as to render said rods readily ren'iovable in case of accumulation of any scale thereon.

(.)ur fire-box is adapted for use in stationar \1 as well as locomotive boilers. l li'e believe we are the firstl to ever provide a readily removable fire-box. and desire that our claims shall receive a corresponding iuj,

tcrpretation.

ll'e claim:

1. A boiler, comprising a shell, a firebox. staying for the sides and crown, and means for readil \r disconnecting the same. and a mud-ring having au upwardly extending' flange and a downwardly extending flange.

preferably provide a l r l getlier. i

In a boiler, the combination of a shell and a fire-box, members having alining eyes Iarried by each of said parts, a rod passing through said eyes, said shell being provided with anopening through which said rod can be withdrawn, and means for closing said opening. i

i. 1n a boiler, the combination of a shell,

` being provided with aliiiing eyes extending i l l l l i l l i l i I l l t.

transversely1 i'odsextending through said eyes and securing said parts together, the back and door sheets being lprovided with alningcyes extending longitudinally, and

transverse rods extending through said e es and securing said parts together, the ue and throat sheets being provided .with aliniiig eyes, and rods 4ext-ending through said c ves and securing said parts together, means being provided ypermitting the withdrawal of said rods from their respective eyes, whereby said fire-box is renderedremovable from said. shell.

In a boiler, the combination of a shell, a tire-box, the top and sides of said parts being provided with aliiiiig eyes extending traiisverselyh rods extending through said yeyes and securing said parts together, the

back and door sheets being provided with aliniiig eyes extending longitudinally, and transverse rods extending through said eyes and securing said parts together, the flue and thi-oat sheets heilig provided with aliiiing eyes,'androds extending' through said eyes and securing said parts together, said shell being provided with openings through which said rods may be withdrawn whereby said fire-box is rendered removable from said shell.

6. In a boiler, the combination of a shell,-

a firebox, a mud-ring, readily removable means for detaehably coniiet'eting the shell and fire-box, the door plate of the fire-box and the haelt plate of Vthe shell being provided with telcscoping flanges for forming a door opening, said connecting means being so formed' that when said flanges are dis-l connected and said mud-ring is"rcmoved,

said lire-box can be moved forward to withdraw one of said flanges from 'within the other. and can then be dropped down.

i'. In a boiler, the ,:onibination of'a U- shaped fire-box section havingr outwardly lprojeet-iug flanges, a transverse sheet to said mud-ring connecting' said shell and fwhich said section is fastened, and aii`iiifire-box. one of the said flanges being atwardly bent ear formed on said fire-box sec- Jtaehed to oneof said parts. and the other Ltion and secured to said sheet.

said eyes yand extending from one group of of said flanges to the other of said parts..

S. In a boiler, the combination of a U- 2. In a boiler. the coi'nliiiiatioirof a shell f shaped fire-box section having outwardly and a fire-box composed of sections. meniprojecting flanges.

bersjiavipg eyes carried by said shell and fire-box Reactions` and a -rod passing through lmiiigflatt-ened and seclii'ed'to the inner face of said mud-ruig, said section having an Aiiiwardly-'beiitiear that. is adapted to be se a mud-ring. said section cured to'a face of said vmudrintgl; at `an angle to the face to which said flattened portion is secured.

9. In-aboiler, the combination'of a U- shaped lire-box section, a transverse plate to which said section is secured, and an angular mud-ring, said plater being secured to one vertical face of Said 1nud-ring, said sec tion having a flattened lower portion that is sccured'to another section of said mud-ring, said section having,r aninwardly bent ear that is secured to said.plate and to said unid-ring, whereby a tight joint is formed in the corner.4

10. In a boiler, the combination of a shell, a firebox and aAmud-ring, staying 4for the lsides. and crown, and means for readily disconnecting the same, said lire-box being composed of U-shaped sections having outwardly projecting flanges, saicl sections being flattened and overlapped" aa. their Lower ends and secured to said mud-ring, said' sectonsbcing Welded where they overlap.l

1-1.- A boiler, comprising a shell, a fire-box, staying for the sides and crown, and meansi 25 for readily disconnecting the same, a. mud-` ring, a'nd means for attaching said shell and lire-box to said 1nuclring,'whereby said firebox may he removed from said shell by (lis:A

connecting said staying and severing Said'SCr'.

attaelnnent between said .Shell and fire-box and said mud-ring. In testimony that we claim the foregoing je have hereunto set ourhands.

` HENRY W. JACOBS,

FRANK Wi, SHUPERT.:

lVitnesses: I

A. Nnwconn,

M. Mamme. 

